Disk galaxies
Barred spiral galaxies
A galaxy with a prominent nuclear bulge and luminous spiral arms of gas, dust, and young stars that wind out from the nucleus. Masses span the range from 10^10 to 10^12 solar masses.
Spiral galaxies
S galaxies
Hubble classification scheme
Unbarred spiral galaxies
Milky Way Galaxy
Triangulum Galaxy
De Vaucouleurs Sandage classification
Andromeda Galaxy